11. The main feature is that the 2 gear planetary gearbox has a reduction ratio of 1:16 and a second gear of 1:4. The axle has a remote differential lock function. The anti-roll bar can be adjusted. When the car is running fast, the anti-roll bar screw should be locked to improve the stability. When the car is climbed, the anti-roll bar screw should be disassembled.

The second gear lock is not in place.

1. Loosen the small lock head screw of the differential steering gear, so that the small lock compression spring can be fixed as much as possible (Note: a little bit of compression, slowly adjust the effect, can not adjust too much at a time)

2. Increase the amount of rudder of the remote control channel 3 (right)

The front and rear bridge locks are not in place.

1. Loosen the large lock screw of the differential steering gear and find the corresponding wire rope of the front and rear axles. Pull out a screw to fix it. (Note: The wire rope should be pulled out a little bit, and the effect is adjusted while the side is adjusted. Do not pull too much distance at a time.)